Portable generator



FIG. 1 is a front, left side, perspective view of a portable generator showing our new design;

FIG. 2 is a rear, right side, perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a top view thereof; and,

FIG. 8 is a bottom view thereof. 

The ornamental design for a portable generator, as shown. 